Home / 9,986,618.12-13,795,641.78-7,946,817.80

Finding the Fourth Proportional to 9,986,618.12, 13,795,641.78 and 7,946,817.80

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Solution

The fourth proportional to 9,986,618.12, 13,795,641.78 and 7,946,817.80 is: 10,977,835.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986,618.12 : 13,795,641.78 = 7,946,817.80 : x
  2. Step 2: Convert to fraction form
    9,986,618.12/13,795,641.78 = 7,946,817.80/x
  3. Step 3: Cross multiply
    9,986,618.12x = 13,795,641.78 × 7,946,817.80
  4. Step 4: Simplify right side
    9,986,618.12x = 109,631,451,659,727.67
  5. Step 5: Solve for x
    x = 109,631,451,659,727.67/9,986,618.12
  6. Step 6: Final answer
    x = 10,977,835.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.